diff --git a/fs/jfs/jfs_imap.c b/fs/jfs/jfs_imap.c
index ecb8e05b8b84..afea481cd6ee 100644
--- a/fs/jfs/jfs_imap.c
+++ b/fs/jfs/jfs_imap.c
@@ -3079,6 +3079,9 @@ static int copy_from_dinode(struct dinode * dip, struct inode *ip)
 	}
 
 	ip->i_size = le64_to_cpu(dip->di_size);
+	if (S_ISREG(ip->i_mode) && ip->i_size < 0)
+		return -EFSCORRUPTED;
+
 	inode_set_atime(ip, le32_to_cpu(dip->di_atime.tv_sec),
 			le32_to_cpu(dip->di_atime.tv_nsec));
 	inode_set_mtime(ip, le32_to_cpu(dip->di_mtime.tv_sec),
diff --git a/fs/jfs/jfs_imap.h b/fs/jfs/jfs_imap.h
index dd7409febe28..025d72890dac 100644
--- a/fs/jfs/jfs_imap.h
+++ b/fs/jfs/jfs_imap.h
@@ -35,6 +35,8 @@
 #define INOPBLK(pxd,ino,l2nbperpg)	(addressPXD((pxd)) +		\
 	((((ino) & (INOSPEREXT-1)) >> L2INOSPERPAGE) << (l2nbperpg)))
 
+#define EFSCORRUPTED	EUCLEAN		/* Filesystem is corrupted */
+
 /*
  *	inode allocation map:
  *